Improvement in plows



J. M. COBB.

Shovel-Plow.

Patented June 26, 1860.

I No. 28,836.

Witnesss:

STATES PATENT OFFICE.

JAMES M. COBB, OF JACKSON, TENNESSEE.

IMPROVEMENT IN PLOWS.

To all whom it may concern:

Be it known that I, JAMES M. COBB, of Jackson, in the county of Madison and State of Tennessee, have invented certain new and useful Improvements in Cotton-Scrapers or Cultivating-Flows; and I do hereby declare the following to be a full, clear, and exact description of the construction of the same, reference being had to the accompanying drawings, making a part of this specification, in which Figure 1 represents a perspective view of the cotton-scraper complete and ready for use. Fig. 2 represents the plow or scraper stock, the mold-board and standard being detached there from; and Fig. 3 represents themold-board and standard detached from the stock.

Similar letters of reference, where they occur in the separate figures,denote like parts of the plow in all of them.

My invention relates to the construction and arrangement of the m0ld-board and its connected parts,the share and landside-plate,and the subsoiler, as will hereinafter be more particularly set forth.

To enable others skilled in the art to make and use myinvention, I will proceed to describe the same with reference to the drawings.

The beam A, handles B, and brace (J, together with the rung D, may be made of wood. The balance of the plow is made of iron and steel. The mold-board E, standard F, and landside Gr maybe cast in one piece,the standard having a projection, a, on it, by which it is bolted to the beam.

H is a landsideplate, Which may be of thin steel, its'front edge, I), forming a share or cutting-edge. This plate is broad enough to form a shield and guide both to the plow. It is securely bolted to the beam and to the standard F and landside or sole G, so as to make all the parts strong and rigid.

Behind the front scraper or plow there is a second scraper or subsoiler, I, which is set deeper than the front one. be of steel, and is bolted to the bottom of the standard or colter J, said colter passing up through a mortise prepared for it by a recess in the beam or in the landside-plate and an outer plate, K, bolted thereto. In this recess or mortise there is one or more points or spurs, c, and on the edge of the standard or colter a series of indentations or notches, d, which fit over said spur c, and behind the standard or colter is driven a key, i, which firmly holds the top of said colter to the beam when adjusted. Alink or stay-rod,f,braces the standard J to the landside-plate H, there being a series of holes in said standard to admit of its being raised or lowered on the beam.

Having thus fully described the nature and construction of my plow, what I claim therein as new,and desire to secure by Letters Patent, 1s-- The combination and arrangement of the mold-board, standard, and sole with landsideplate H and beam A, and with the subsoiler I, as herein represented, and for the purpose set forth.

JAS. M. COBB.

This subsoiler may 

